Merlí (Catalan pronunciation: [məɾˈli]) is a Spanish television series produced by the Catalan channel TV3 about a philosophy teacher of the same name who encourages students to think freely using philosophy.

The series, created and written by Hector Lozano and directed by Eduard Cortés, premiered on 14 September 2015 in prime time and reached a share of 17.7% with 566,000 viewers. The second season of the series premiered on TV3 on 19 September 2016 and ended on 12 December 2016, and the series' third and final season began airing on 18 September 2017 and ended on 15 January 2018.

Each episode is named after a different philosopher or school of thought. Influenced by films like Dead Poets Society, Merlí attempts to bring philosophy to the public. Each episode includes the approaches of a great thinker or school, such as the Peripatetics, Nietzsche or Schopenhauer, linking their teachings with fictional events and characters. The theme song is a version of "Flight of the Bumblebee".

The first season was dubbed into Castilian Spanish by the company Atresmedia and broadcast on the television channel La Sexta from April to June 2016. In November 2016, the American company Netflix bought the rights for the distribution of the series. The three seasons of the series are available on Netflix in Spain, the United States, and Latin America (although Netflix lost the license in December 2020).

A spinoff entitled Merlí: Sapere Aude premiered on Movistar+ on 5 December 2019.